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Finding the Fourth Proportional to 8,606.49, 12,906.08 and 3,061.23

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Solution

The fourth proportional to 8,606.49, 12,906.08 and 3,061.23 is: 4,590.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,606.49 : 12,906.08 = 3,061.23 : x
  2. Step 2: Convert to fraction form
    8,606.49/12,906.08 = 3,061.23/x
  3. Step 3: Cross multiply
    8,606.49x = 12,906.08 × 3,061.23
  4. Step 4: Simplify right side
    8,606.49x = 39,508,444.27
  5. Step 5: Solve for x
    x = 39,508,444.27/8,606.49
  6. Step 6: Final answer
    x = 4,590.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.